For most of the players, it is more of the game play that is important. But sometimes the game menu is also important factor of attraction.

Some suggestions:
- The world map should be the main menu from where you can access everything
- The cool icons like: flags (for quest), camp/tent (for training), sand hourglass (for game of luck), Billboard (for character and deck menu), colosseum (for arena), sack of gold (for market), etc. can be placed in the map at the capital cities or any appropriate location.

Right now I think the menu UI is bit hard to navigate.
Just the opinion of one player, so don’t take it seriously.